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Geforce GTX 690 vs Geforce GTX 770

Intro

The Geforce GTX 690 comes with a GPU clock speed of 915 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1502 MHz through a 256-bit bus. It also features 1536 Stream Processors, 128 TAUs, and 32 ROPs.

Compare those specifications to the Geforce GTX 770, which makes use of a 28 nm design. nVidia has clocked the core speed at 1046 MHz. The GDDR5 memory works at a speed of 1753 MHz on this card. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770 230 Watts
Geforce GTX 690 300 Watts
Difference: 70 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 690 is 71% faster than the Geforce GTX 770 overall, due to its greater bandwidth. (explain)

Geforce GTX 690 384512 MB/sec
Geforce GTX 770 224384 MB/sec
Difference: 160128 (71%)

Texel Rate

The Geforce GTX 690 will be quite a bit (about 75%) faster with regards to anisotropic filtering than the Geforce GTX 770. (explain)

Geforce GTX 690 234240 Mtexels/sec
Geforce GTX 770 133888 Mtexels/sec
Difference: 100352 (75%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 690 is superior to the Geforce GTX 770, by far. (explain)

Geforce GTX 690 58560 Mpixels/sec
Geforce GTX 770 33472 Mpixels/sec
Difference: 25088 (75%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Geforce GTX 690

Amazon.com

Geforce GTX 770

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Geforce GTX 690 Geforce GTX 770
Manufacturer nVidia nVidia
Year April 2012 May 2013
Code Name GK104 GK104
Memory 2048 MB (x2) 2048 MB
Core Speed 915 MHz (x2) 1046 MHz
Memory Speed 6008 MHz (x2) 7012 MHz
Power (Max TDP) 300 watts 230 watts
Bandwidth 384512 MB/sec 224384 MB/sec
Texel Rate 234240 Mtexels/sec 133888 Mtexels/sec
Pixel Rate 58560 Mpixels/sec 33472 Mpixels/sec
Unified Shaders 1536 (x2) 1536
Texture Mapping Units 128 (x2) 128
Render Output Units 32 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Comments

2 Responses to “Geforce GTX 690 vs Geforce GTX 770”
Anonymous says:

If only I had more info...

Nigga says:

Nigga nigga nigga, you're 100% nigga

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